/*
  ==============================================================================

   This file is part of the JUCE framework.
   Copyright (c) Raw Material Software Limited

   JUCE is an open source framework subject to commercial or open source
   licensing.

   By downloading, installing, or using the JUCE framework, or combining the
   JUCE framework with any other source code, object code, content or any other
   copyrightable work, you agree to the terms of the JUCE End User Licence
   Agreement, and all incorporated terms including the JUCE Privacy Policy and
   the JUCE Website Terms of Service, as applicable, which will bind you. If you
   do not agree to the terms of these agreements, we will not license the JUCE
   framework to you, and you must discontinue the installation or download
   process and cease use of the JUCE framework.

   JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
   JUCE Privacy Policy: https://juce.com/juce-privacy-policy
   JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/

   Or:

   You may also use this code under the terms of the AGPLv3:
   https://www.gnu.org/licenses/agpl-3.0.en.html

   THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
   WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.

  ==============================================================================
*/

#pragma once


//==============================================================================
class ModulesInformationComponent final : public Component,
                                          private ListBoxModel,
                                          private ValueTree::Listener
{
public:
    ModulesInformationComponent (Project& p)
        : project (p),
          modulesValueTree (project.getEnabledModules().getState())
    {
        auto tempHeader = std::make_unique<ListBoxHeader> (Array<String> { "Module", "Version", "Make Local Copy", "Paths" },
                                                           Array<float> { 0.25f, 0.2f, 0.2f, 0.35f });
        listHeader = tempHeader.get();
        list.setHeaderComponent (std::move (tempHeader));
        list.setModel (this);
        list.setColour (ListBox::backgroundColourId, Colours::transparentBlack);
        addAndMakeVisible (list);
        list.updateContent();
        list.setRowHeight (30);
        list.setMultipleSelectionEnabled (true);

        addAndMakeVisible (header);

        addAndMakeVisible (setCopyModeButton);
        setCopyModeButton.setTriggeredOnMouseDown (true);
        setCopyModeButton.onClick = [this] { showCopyModeMenu(); };

        addAndMakeVisible (copyPathButton);
        copyPathButton.setTriggeredOnMouseDown (true);
        copyPathButton.onClick = [this] { showSetPathsMenu(); };

        addAndMakeVisible (globalPathsButton);
        globalPathsButton.onClick = [this] { showGlobalPathsMenu(); };

        modulesValueTree.addListener (this);
        lookAndFeelChanged();
    }

    void paint (Graphics& g) override
    {
        g.setColour (findColour (secondaryBackgroundColourId));
        g.fillRect (getLocalBounds().reduced (12, 0));
    }

    void resized() override
    {
        auto bounds = getLocalBounds().reduced (12, 0);

        header.setBounds (bounds.removeFromTop (40));

        bounds.reduce (10, 0);
        list.setBounds (bounds.removeFromTop (list.getRowPosition (getNumRows() - 1, true).getBottom() + 20));

        if (bounds.getHeight() < 35)
        {
            parentSizeChanged();
        }
        else
        {
            auto buttonRow = bounds.removeFromTop (35);
            setCopyModeButton.setBounds (buttonRow.removeFromLeft (jmin (200, bounds.getWidth() / 3)));
            buttonRow.removeFromLeft (8);
            copyPathButton.setBounds (buttonRow.removeFromLeft (jmin (200, bounds.getWidth() / 3)));
            buttonRow.removeFromLeft (8);
            globalPathsButton.setBounds (buttonRow.removeFromLeft (jmin (200, bounds.getWidth() / 3)));
        }
    }

    void parentSizeChanged() override
    {
        auto width = jmax (550, getParentWidth());
        auto y = list.getRowPosition (getNumRows() - 1, true).getBottom() + 200;

        y = jmax (getParentHeight(), y);

        setSize (width, y);
    }

    int getNumRows() override
    {
        return project.getEnabledModules().getNumModules();
    }

    void paintListBoxItem (int rowNumber, Graphics& g, int width, int height, bool rowIsSelected) override
    {
        ignoreUnused (height);

        Rectangle<int> bounds (0, 0, width, height);

        g.setColour (rowIsSelected ? findColour (defaultHighlightColourId) : findColour (rowNumber % 2 == 0 ? widgetBackgroundColourId
                                                                                                            : secondaryWidgetBackgroundColourId));
        g.fillRect (bounds.withTrimmedBottom (1));

        bounds.removeFromLeft (5);
        g.setColour (rowIsSelected ? findColour (defaultHighlightedTextColourId) : findColour (widgetTextColourId));

        //==============================================================================
        auto moduleID = project.getEnabledModules().getModuleID (rowNumber);

        g.drawFittedText (moduleID, bounds.removeFromLeft (roundToInt (listHeader->getProportionAtIndex (0) * (float) width)), Justification::centredLeft, 1);

        //==============================================================================
        auto version = project.getEnabledModules().getModuleInfo (moduleID).getVersion();
        if (version.isEmpty())
            version = "?";

        g.drawFittedText (version, bounds.removeFromLeft (roundToInt (listHeader->getProportionAtIndex (1) * (float) width)), Justification::centredLeft, 1);

        //==============================================================================
        g.drawFittedText (String (project.getEnabledModules().shouldCopyModuleFilesLocally (moduleID) ? "Yes" : "No"),
                          bounds.removeFromLeft (roundToInt (listHeader->getProportionAtIndex (2) * (float) width)), Justification::centredLeft, 1);

        //==============================================================================
        String pathText;

        if (project.getEnabledModules().shouldUseGlobalPath (moduleID))
        {
            pathText = "Global";
        }
        else
        {
            StringArray paths;

            for (Project::ExporterIterator exporter (project); exporter.next();)
                paths.addIfNotAlreadyThere (exporter->getPathForModuleString (moduleID).trim());

            paths.removeEmptyStrings();
            paths.removeDuplicates (true);

            pathText = paths.joinIntoString (", ");
        }

        g.drawFittedText (pathText, bounds.removeFromLeft (roundToInt (listHeader->getProportionAtIndex (3) * (float) width)), Justification::centredLeft, 1);
    }

    void listBoxItemDoubleClicked (int row, const MouseEvent&) override
    {
        auto moduleID = project.getEnabledModules().getModuleID (row);

        if (moduleID.isNotEmpty())
            if (auto* pcc = findParentComponentOfClass<ProjectContentComponent>())
                pcc->showModule (moduleID);
    }

    void deleteKeyPressed (int row) override
    {
        project.getEnabledModules().removeModule (project.getEnabledModules().getModuleID (row));
    }

    void lookAndFeelChanged() override
    {
        setCopyModeButton.setColour (TextButton::buttonColourId, findColour (secondaryButtonBackgroundColourId));
        copyPathButton.setColour    (TextButton::buttonColourId, findColour (defaultButtonBackgroundColourId));
        globalPathsButton.setColour (TextButton::buttonColourId, findColour (defaultButtonBackgroundColourId));
    }

private:
    enum
    {
        nameCol = 1,
        versionCol,
        copyCol,
        pathCol
    };

    Project& project;
    ValueTree modulesValueTree;

    ContentViewHeader header  { "Modules", { getIcons().modules, Colours::transparentBlack } };
    ListBox list;
    ListBoxHeader* listHeader;

    TextButton setCopyModeButton  { "Set copy-mode for all modules..." };
    TextButton copyPathButton     { "Set paths for all modules..." };
    TextButton globalPathsButton  { "Enable/disable global path for modules..." };

    std::map<String, var> modulePathClipboard;

    void valueTreePropertyChanged (ValueTree&, const Identifier&) override    { itemChanged(); }
    void valueTreeChildAdded (ValueTree&, ValueTree&) override                { itemChanged(); }
    void valueTreeChildRemoved (ValueTree&, ValueTree&, int) override         { itemChanged(); }
    void valueTreeChildOrderChanged (ValueTree&, int, int) override           { itemChanged(); }
    void valueTreeParentChanged (ValueTree&) override                         { itemChanged(); }

    void itemChanged()
    {
        list.updateContent();
        resized();
        repaint();
    }

    static void setLocalCopyModeForAllModules (Project& project, bool copyLocally)
    {
        auto& modules = project.getEnabledModules();

        for (auto i = modules.getNumModules(); --i >= 0;)
           modules.shouldCopyModuleFilesLocallyValue (modules.getModuleID (i)) = copyLocally;
    }

    void showCopyModeMenu()
    {
        PopupMenu m;

        m.addItem (PopupMenu::Item ("Set all modules to copy locally")
                     .setAction ([&] { setLocalCopyModeForAllModules (project, true); }));

        m.addItem (PopupMenu::Item ("Set all modules to not copy locally")
                     .setAction ([&] { setLocalCopyModeForAllModules (project, false); }));

        m.showMenuAsync (PopupMenu::Options().withTargetComponent (setCopyModeButton));
    }

    static void setAllModulesToUseGlobalPaths (Project& project, bool useGlobal)
    {
        auto& modules = project.getEnabledModules();

        for (auto moduleID : modules.getAllModules())
            modules.shouldUseGlobalPathValue (moduleID) = useGlobal;
    }

    static void setSelectedModulesToUseGlobalPaths (Project& project, SparseSet<int> selected, bool useGlobal)
    {
        auto& modules = project.getEnabledModules();

        for (int i = 0; i < selected.size(); ++i)
            modules.shouldUseGlobalPathValue (modules.getModuleID (selected[i])) = useGlobal;
    }

    void showGlobalPathsMenu()
    {
        PopupMenu m;

        m.addItem (PopupMenu::Item ("Set all modules to use global paths")
                    .setAction ([&] { setAllModulesToUseGlobalPaths (project, true); }));

        m.addItem (PopupMenu::Item ("Set all modules to not use global paths")
                    .setAction ([&] { setAllModulesToUseGlobalPaths (project, false); }));

        m.addItem (PopupMenu::Item ("Set selected modules to use global paths")
                    .setEnabled (list.getNumSelectedRows() > 0)
                    .setAction ([&] { setSelectedModulesToUseGlobalPaths (project, list.getSelectedRows(), true); }));

        m.addItem (PopupMenu::Item ("Set selected modules to not use global paths")
                    .setEnabled (list.getNumSelectedRows() > 0)
                    .setAction ([&] { setSelectedModulesToUseGlobalPaths (project, list.getSelectedRows(), false); }));

        m.showMenuAsync (PopupMenu::Options().withTargetComponent (globalPathsButton));
    }

    void showSetPathsMenu()
    {
        PopupMenu m;
        auto moduleToCopy = project.getEnabledModules().getModuleID (list.getSelectedRow());

        if (moduleToCopy.isNotEmpty())
        {
            m.addItem (PopupMenu::Item ("Copy the paths from the module '" + moduleToCopy + "' to all other modules")
                         .setAction ([this, moduleToCopy]
                                     {
                                         auto& modulesList = project.getEnabledModules();

                                         for (Project::ExporterIterator exporter (project); exporter.next();)
                                         {
                                             for (int i = 0; i < modulesList.getNumModules(); ++i)
                                             {
                                                 auto modID = modulesList.getModuleID (i);

                                                 if (modID != moduleToCopy)
                                                     exporter->getPathForModuleValue (modID) = exporter->getPathForModuleValue (moduleToCopy).get();
                                             }
                                         }

                                         list.repaint();
                                     }));

            m.addItem (PopupMenu::Item ("Copy paths from selected module")
                         .setEnabled (list.getNumSelectedRows() == 1)
                         .setAction ([this, moduleToCopy]
                                     {
                                         modulePathClipboard.clear();

                                         for (Project::ExporterIterator exporter (project); exporter.next();)
                                             modulePathClipboard[exporter->getUniqueName()] = exporter->getPathForModuleValue (moduleToCopy).get();

                                         list.repaint();
                                     }));

            m.addItem (PopupMenu::Item ("Paste paths to selected modules")
                         .setEnabled (! modulePathClipboard.empty())
                         .setAction ([this]
                                     {
                                         for (int selectionId = 0; selectionId < list.getNumSelectedRows(); ++selectionId)
                                         {
                                             auto rowNumber = list.getSelectedRow (selectionId);
                                             auto modID = project.getEnabledModules().getModuleID (rowNumber);

                                             for (Project::ExporterIterator exporter (project); exporter.next();)
                                                 exporter->getPathForModuleValue (modID) = modulePathClipboard[exporter->getUniqueName()];
                                         }

                                         list.repaint();
                                     }));
        }
        else
        {
            m.addItem (PopupMenu::Item ("(Select a module in the list above to use this option)")
                         .setEnabled (false));
        }

        m.showMenuAsync (PopupMenu::Options()
                           .withDeletionCheck (*this)
                           .withTargetComponent (copyPathButton));
    }

    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ModulesInformationComponent)
};
